4-Cyano-2-fluoro-5-(trifluoromethoxy)pyridine-3-sulfonyl chloride
Ethyl 6-chloro-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-carboxylate
3-Cyano-2-(fluoromethyl)-5-(trifluoromethoxy)pyridine-6-acetic acid
3-Cyano-2-(fluoromethyl)-4-(trifluoromethoxy)pyridine-5-acetic acid